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At least 1,387 records · Page 77Linked to original sources
PubMed2002

Management of myopic astigmatism with phakic intraocular lens implantation.

A 48-year-old woman presented with a manifest refraction of -9.25 -2.25 x 98 that resulted in a best corrected visual acuity (BCVA) of 20/20(-2) in the right eye. She was contact lens intolerant but was not a good candidate for laser in situ keratomileusis because of a thin cornea. A phakic posterior chamber intraocular lens (IOL) with a toric optic was implanted with no operative complications. One day after surgery, the uncorrected visual acuity (UCVA) was 20/15. Five months postoperatively, the UCVA in the operated eye was 20/15 with a manifest refraction of +0.25 -0.25 x 60 and a BCVA of 20/15. No changes to the crystalline lens or anterior lens capsule were seen. This is the first report of implantation of a toric phakic IOL in North America.

Astigmatism↗
PubMed1992

Combined myopia and astigmatism surgery. Review of 350 cases.

Between February 1985 and December 1987, 350 eyes had combined radial keratotomy and transverse keratotomy surgery. All procedures were performed by the same surgeon. The number and length of the radial and transverse incisions were varied according to the surgeon's clinical judgment based on his personal experience and the nomograms developed by Thornton. Our results showed that 93% of the eyes had 20/40 or better uncorrected visual acuity at the last follow-up visit. The data indicate that quantifiably predictable results can be achieved with this procedure and that results appear stable up to five years after surgery in 80% of the documented cases. There was a tendency toward increasing effect of the transverse incisions in 20% of cases studied. This seems to correlate well with previous studies measuring long-term results with radial incisions for myopia.

Astigmatism↗
PubMed1995

Photorefractive keratectomy to treat myopia and astigmatism after radial keratotomy and penetrating keratoplasty.

Fifteen eyes with an initial myopia between -5.00 diopters (D) and -12.00 D were treated with radial keratotomy (RK) followed by photorefractive keratectomy (PRK) at least 6 months later and observed for 6 months to 24 months. Five eyes that had penetrating keratoplasty (PKP) were treated for residual ametropia by PRK and followed for up to two years. For the RK-treated eyes, mean pre-PRK refraction was -4.00 D sphere and + 1.25 D cylinder, which improved to -0.52 D sphere and + 0.73 D cylinder. Incidence of complications, including corneal haze, was extremely low in both the RK and PKP groups. In summary, PRK is a valuable method for correcting ametropia following RK and PKP, with risks similar to that for eyes having PRK as the initial refractive procedure.

Adult↗